40. Despite the definition of “former pension plan” in section 1, for the purposes of sections 13, 16, 17, 19, 26, 27 and 28, the amount of the benefit payable to a person who has never be longed to a class of employees referred to in paragraphs 1 to 11 of Schedule II and for whom the Government and Public Employees Retirement Plan is the last plan of which the person was a member before this Order in Council became applicable to the person is computed by considering the Government and Public Employees Retirement Plan as the former pension plan.